Yao Nanase

Yao Nanase (七瀬 八百 Nanase Yao) is a freshman student of Hiiragi Academy's main campus. Like Junichirou Kagami and Koutarou Araki, he is an avid 'Uroboros' gamer under the avatar called "Empty."

Etymology

 * The name Yao means "eight" (八) (ya) and "hundred" (百) (o).
 * Yao's surname Nanase means "seven" (七) (nana) and "swift current, rapids" (瀬) (se).